Underground tanks

Underground tanks


Storage of flammable liquids for heating systems or feeding tanks for generators.

Horizontal cylindrical double-walled tanks for underground storage of flammable and
non-flammable liquids. Made by using shell plates and dished ends made in carbon steel quality S 235 JR complying with UNI EN 10025.


Main features:

  • Ø 400 mm. manholes complete with gasket, bolted cover, loading access port
  • with lockable quick cap and overfill protection valve.
  • Suction line provided with foot valve and filter
  • Retention dome shaft 650x650x H mm. 750
  • Structural lifting lugs.
  • Grounding point.
  • Interstitial space plugs.


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Documents & Certificates provided with tanks:

  • Pressure Testing certificate
  • Calibration table

The tank is provided with an external protection coating which also acts as cathodic protection.

EPOXY-TAR: protection coating consisting in an epoxy-based, 2-component product made with epoxy resins modified by a coal tar-based hydrocarbon resin.

FIBERGLASS (GRP): external treatment based on polyester resins reinforced with fiber-glass material.


LAG14 ERLAG14-type leak detection system, connected to the double-skin inlet connection.
The interstice is filled with anti-freeze mono-propylene glycol solution, which is a non-toxic, and non-contaminating liquid.


Supplement for glycol solution:



Litri GLICOLE (30%)

+ ACQUA (70%) a carico del cliente

MC. 2 100
MC. 3 120
MC. 5 190
MC. 6 220
MC. 7 230
MC. 8 240
MC. 9 250
MC. 10 280
MC. 12 310
MC. 15 360
MC. 20 440
MC. 25 530
MC. 30 590
MC. 40 750
MC. 50 900


EUROVACThe Eurovac NV leak detector for vacuum systems is a class 1 leak detector according to EN 13160-1. The Eurovac HV leak detector may only be used to detect leaks in tanks which are not pressurised (i.e. operated under atmospheric conditions) and which are used for the storage of liquids. Eurovac NV is equipped with an output relay to transmit the alarm signal to additional external devices. If no error condition is present, the relay is de-energised. In the case of an alarm, the relay is energised.